Santa's helpers at Amazon.com working 24/7

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PHOENIX -- Santa's helpers at Amazon.com's biggest Arizona warehouse are working practically around the clock to make sure your gifts get where they need to be this holiday season.

Gibby Parra got an inside look at the massive warehouse -- one of the busiest in the world --  on Cyber Monday, which is expected to once again be Amazon's busiest day of the entire year.

Cyber Monday 2010 was Amazon's peak day with more than 13.7 million items ordered worldwide across all product categories. That's a record-breaking 158 items per second.

The Phoenix facility alone was expected to fulfill an estimate 500,000 orders Monday.